Which muscle extends the fingers?
a. extensor carpi radialis
b. extensor digitorum longus
c. extensor digitorum
d. supinator

c. extensor digitorum

Explanation:

the extensor digitorum communis extends the phalanges, then the wrist, and finally the elbow. It tends to separate the fingers as it extends them. In the fingers, the extensor digitorum acts principally on the proximal phalanges, acting to extend the metacarpophalangeal joint.

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explanation:

i was told this before by a teacher, so yeah

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